Brush



April 29, 1924. 1,492,052

A. G. TOLMAN BRUSH Filed Feb. 15, 1922 r 3 IHWWIIHII WWW WNW/[WI WI Will INVEN TOR.

Arthur GIcflman A ORNEY.

Patented Apr. 29, 1924 ARTHUR G. TOLMAN; OF MILWAUKEE, WISCONSIN.

BRUSH.

Application filed February lS, 1922. Serial No. 536,756.

To all whom it may concern:

Be it known that I, ARTHUR Gr. TOLMAN, a citizen of the United States, and resident of Milwaukee, in the county of Idlilwaukeeand State of Wisconsin, have invented new and useful Improvements in Brushes, of which the following is a description, reference being had to the accompanying drawings,

which are a part of this specification.

This invention relates to certain new and useful improvements in brushes and refers more particularly to a general utility brush.

At the present time, various types of brushes have been designed for this type of work, but they have all been open to many objections, among which are the inability to present a sufiiciently strong set of bristles and the inefficiency of the brush due to its becoming out of shape after slight use.

Hence with the above objections to the existing type of brushes in mind it is one of the objects of this invention to provide an improved form of brush in which a member is positioned among the brush bristles to substantially reinforce the same and prevent their curling or bending in use-at the point of connection with the brush head.

Another object of this invention is to provide a brush especially adapted for use'in connection with cement work in which an elongated member, or insert is positioned intermediate the bristles with its outer edge referably spaced a slight distance from the bristle ends to be out of the path thereof and at the same time provide a reinforcing orstiffening means therefor.

A further ob'ect of myinvention is to provide a brush of the type described, in which tl'iestifiening or reinforcing member is capable' of adjustment to accommodate for wear of the bristles.

This invention has for a still further obj ect to provide a brush of the type described which .may be constructed at a minimum cost and which will perform its functions in a highly desirable manner.

With the above and other objects in view which will appear as the description proceeds, my invention resides in the novel construction, combination and arrangement of parts substantially as hereinafter described and more particularly defined by the ap pended claims, it being understood that such changes in the precise embodiment of the brush and herein disclosed invention may be made as come within the scope of the claims.

In the accompanying drawing, I have il- 'lustrated one complete example of the physical embodiment of my invention constructed according to the best mode I have so far devised for the practical application of the principles thereof, and in'which: I Figure 1 is a view looking at one side of a brush embodying my invention, parts thereof being broken away and in section, to more clearly illustrate details of construction;

Figure 2 is a transverse sectional view taken through the brush on the line 2-2 of Figure 1;

Figure 3 is a view similar to Figure 2 illustrating a slightly modified form of Figure 4: is a fragmentary view of one end of another modified form of brush, parts being broken away and in'section to more clearly illustrate structural details.

Referring now more particularly to the accompanying drawing in which like nuinerals designate like parts throughout the several views; the numeral 5 designates a brush head which is preferably of substantially inverted U-shape intransverse section to provide two spaced parallel ribs 6 from which project bristles. 7; The ordinary brush consists of nothing more than rows of bristles 7 which flex or bend under use from their point of connection with the brush head and consequently aft r but a short while are of practically no value and as only the outermost portions of the bristles are engaged with the work, I provide a center member 8 in the form of an elongated strip having its inner edge slidably mounted in a recess 9, formed by ribs or flanges 6. The outer portion of the member 8 is preferably tapered as at 10 and the outer edge thereof terminates adjacent the ends of the bristles.

The member 8 is movable into and out of the recess 9 to adjust the relation of its outermost edge with the bristle ends by means of screws 11 which pass through the top wall of the brush head and into; recesses 12 in the member 8, that portion of each screw 11 within the recess 9 being surrounded by an extensile spring 13, one end of which abuts the member 8 and the other end of which extends into a counterbored recess 14 within the inner wall of the'brush head.

The spring 13, as willbe readily obvious, yieldably urges member 8 outwardl and at the same time permits its ready adjustment by manipulation of screws 11.

The handle 15 is detachably secured ina socket 16, formed on an angle bracket 17 which is reversibly secured to the brush head by a thumb screw 1 8. "The angle bracket 17 has its upper portionsubstantially extend-- ing across the top of the'brush head and its side portion along the side thereof and when the bristles are worn on one, side, or are bent rcarwardly' due to constant use, the bracket member 17 isreversed in order to reverse the normal direction in which the brush is moved when in use. With this arrangement the life of the brush is increased and when the bristles wear down and thesedge of the member 8 is too close thereto, the screws 11 are adjusted to properly position said member as will be readily obvious.

In Figure 3 I haveillustrated a slightly modified form of my invention in which the bristles 7 are carried by two elongated blocks r or strips 6 secured to a top plate 19 by fastenings 20. The top plate having a centrally longitudinally extending rib 21 on its under side to properly space the strips 6- to form the recess 9.' lVith this construction it willbe readilyseen that the bristles 7 may be'readily renewed when they have become substantially worn out.

able by wing nuts 7 for use in connection with cement work,

roof work, or the like, and one the life of wh ch will be materially prolonged as well as its efficiency increased;

, That I claimfas my invention is:

1. As an article of manufacture, a brush comprising a brush head, bristles carried by the brush head, an elongated member substantially concealed within the bristles and extend ng along the free ends thereof to re- 7 said member and passed through the brush head, screwmeans for adjusting said guide parts in the head, and means on the gu de partsfor yieldably retaining said member in its adjusted position.

3. In a device of the character descrlbed,

a brush head provided with an elongated V groove in its lower face, bristles projected from the head adjacent the groove, an elo-ngated reinforcing member having its inner end engaged in the groove and its outer edge positioned adjacent the outer ends of the bristles, and means for moving said member into and out of said groove to adjust. its outeredge with respect to the bristle ends,

Intestimony whereof, 'I afiix; my signature. I

RTHURG. TOLMAN. 

